Building construction



Feb. 24, 1931. w. P. KELLETT BUILDING CONSTRUCTION Filed Feb. 3, 192

Patented Feb. 24, 1931 UNITED STATES PATIENT OFFICE I WILLIAM I LATTs KELLETT, or BRANT'FORD, ONTARIO, CANADA, ASSIGNOR or oNE- HALF To GILBERT BRER-ETON, OF'BRANTFORD, ONTARIO, CA A A BUILDING CONSTRUCTION Application filed February 3, 1927. Serial No. 165,638.

The principal objects of the invention are, to reduce the cost of construction of concrete buildings to enable the more rapid fabrication of the structure and to present finished surfaces which may be very readily decorated or which may not require decoration and will present an exceptionally fine appearance.

The principal feature of the invention consists in fabricating forms of sheet metal and uniting them together to form the finished surface of the structure, the interior thereof being filled with a uniform and unitary standard reinforced concrete body.

In the accompanying drawings, Figure 1 is a detail perspective section of a portion of the beam structure of a building constructed in accordance with this invention.

Figure 2 is an enlarged cross sectional view through one of the completed beams.

In the building of concrete structures, it has been the practice to build up moulds and forms of lumber and timber into which the fluid concrete is poured and these forms are removed when the concrete has thoroughly set. Such methods of construction require a considerable amount of structural material in the forms and their supports which is ultimately waste and after the forms are removed a great deal of work and expense is required to produce a presentable appearance on the surface of the concrete.

According to the present invention the forms for containing the concrete mix are built up of sheet metal with the exterior surfaces of the desired dimensions for the finished beam or column. The beam structures are formed of U-shape having the bottom 1 and side walls 2 fabricated either from one single sheet or from a multiple number of sheets suitably welded or otherwise secured together at the joints. The top edges 3 of the side walls are turned inwardly leaving the open slots a to allow the insertion of the reinforcing member and the concrete.

In the cross section of beam shown, a rod type of reinforcement is used but a beam reinforcement may be used if desired, or the forms may be placed around the skeleton steel structure of a building.

The external surfaces of the mould or form are finished in a manner'such as may be desired for the final finished surface, thatis to say the moulds may be made of copper or bronze where a metal surface finish is desired,

or they may be made of galvanized metal where a painted or other decorated surface is desired. p

The interior walls of the form are preferably provided with a plurality of inwardly projecting metal strips 5 which may be of sheet metaland may be spot welded or otherwise fastened to the body sheet. These strips projectinwardly to form a bond with the concrete mix. I

The forms may be made up in the shop in section in the same manner that steel beam -When the form-s are placed in position,

they will of course require to be supported but the supporting arrangements will be much more simple than will the supports requiredforcarryingthevery heavy woodforms at present in use, consequently very much less material for supporting structures will be required. WVhen the forms are set in position, either around the beam or in monolithic structures, the reinforcements will be set into the mould and the concrete is then poured through the open slots 4 in the top.

It will be readily seen that with moulds constructed as described there will be no leakage of water'from the concrete mix and the difiiculties encountered with wooden mould structures through swelling and warping will be obviated. W hen the concrete is set the supports are removed and the metal surface remains exposed in a finished state.

The idea incorporated in this invention is very simple but it is very effective and effects a very great saving in the cost of the structure and produces a very desirable appearance.

What I claim as my invention is:

1. A building construction comprising a plurality of moulds each formed of a unihorizontally 2. building construction, comprising a; pluralityof mould sections each formed of a single sheet of metal bent into substantially rectangular cross section and secured permanently together in intersecting relationwith their hollow interiors interconnected; said mould sections each having the longitudinal edge portions arranged uppermost and being flanged inwardly at substantially right angles to the side walls and spaced apart leaving a central longitudinal opening, vertical mould f sections arranged to intersect the former mould sections and belng permanently secured thereto with their interiors interconnecting, said vertlcal mould sections having the side walls completely closed, reinforcements arranged in said vertical mould sections, reinforcements inserted through said central openings and extending continuously through the interconnected hollow interiors of the open mould sections and intersecting the reinforcements in said vertical mould sections, and a continuous core of concrete filling the interconnected interiors of said vertical and horizontal moulds.

3. A building construction, comprising a plurality of moulds formed of sheet metal arranged in horizontal and verticalintersecting relation the one to the other to form a hollow skeleton frame-work, and a continuous core of concrete filling the interior of the and vertically intersecting mould sections of said hollow skeleton frame work and united thereto to form a permanent integral structure. a V

r 4. A building construction comprising a skeleton frame-workformed of a plurality of hollow moulds formed in sections from sheet metal and permanently secured together in horizontal and verticalintersecting relation the one to the other with their interiors interconnecting, and a continuous core v of concrete filling the interconnecting interiors of said horizontal and vertical intersecting moulds and forming therewith a permanent integral frame structure presenting a metallic surface. c

5. A building frame structure formed of a plurality of horizontally and vertically intersecting moulds, each of said moulds be ing formed of sheet metal into apermanent rectangular cross section, said horizontal moulds being open at the top and having their interiors communicating at the'points of intersection with said vertical moulds, re-

' inforcing metal strips secured at one end to the interior Wall of said intersecting 

